Jules chaumont



(No Model.)

J. OHAUMONT.

MACHINERY FOR SHEET METAL SPINNING. No. 286,115. Patented Oct. 2, 1883.

lllllllillll i l l rl llll[NIHHI By his Attorneys UNlTE TATES PATENT OFFICE JULES OI-IAUMONT, OF VVOODHAVEN, ASSIGNOR TO THE LALANOE & GROS- JEAN MANUFAOTURIN G COMPANY, OF NEW YORK, N. Y.

MACHINERY FOR SHEET-METAL SPINNING.

SPECIFICATION forming part of Letters Patent No. 286,115, dated October 2, 1883. Application filed February 12, 1883. (No model.)

To aZZ whom it may concern Be it known that I, J Urns GI'IAUBIONT, a citizen of the United States, residing at lVoodhaven, in thccounty of Queens and State of New York, have invented certain new and me April 4, 1882, I have shown and described a sheet-metal vessel formed without seam by spinning, having a greater diameter at its base than at its mouth and my present invention relates to machinery or apparatus for pro 1 5 ducing vessels having the forms above referred to, as well as sheet-metal vessels of the ordinary character and forms.

My invention consists in certain improvements in machinery for spinning shect-metal vessels, whereby vessels of various forms and sizes may be produced upon one machine, said improved machinery being particularly applicable to the production of vessels of the character forming the subject-matter of my said for 2 5 mer application.

My improvements are hereinafter particularly described, and pointed out in my claims. The accompanying drawing illustrates my invention, giving a view in elevation (partly c in section) of a blank of sheet metal as mount ed upon a lathe before the operation of spinning the same has been commenced, the dotted lines showing the shape it assumes after the operation of spinning.

Rcferrin to the drawin A is a sfindle mounted in suitable bearings, B, which latter may be mounted upon the frame-work of the lathe. A stepped or cone pulley, O, for changing the speed of the spindle, is keyed or oth- 40 erwise rigidly mounted upon the spindle A.

This spindle and pulley are designed to be ro tated in the usual manner by means of a belt, 2, communicating motion from a shaft situated in proximity to the lathe.

A head-stock, D, constructed in the form of a socket,having a rim or flange, (Z, is rigidly secured to one extremity of the spindle A and revolves therewith. The cylindrical blank or piece ol'shcct metal E maybe previously formed 7 ranged as shown in the figure.

by stamping or by the ordinary methods of spinning. This blank is placed, with its fiat portion 6 against the corresponding plane surface of the headstock D, within the rim cl, and is held firmly in place, as hereinafter described. A metallic plate or piece, F, is next placed with its plane surface f against the interior surface of the fiat portion 0 of the blank E, and is held in position by the pressure of the other parts of the mechanism, as hereinafter explained. the plate F, and is designed to receive the ex tremity 9, formed upon the projection h of the arm H. The arm H is preferably rigidly, a

A bearing, is formed withinthough it maybe adjustably attached at right angles to the rod I, ,which latter is in turn rigidly secured to the extremity of the bar J by means of the set-screw 7', or by other convenient means. The bar J is secured to the lathe in any desirable manner, it being only essential that it be rigidly held in place while the lathe is in operation, and made to exert sufficient longitudinal pressure upon the rod I to hold the metallic blank securely against the head'stock while the latter revolves. The bar should be capable of being readily detached when the process of forming the vessel is completed. A roller or moldchuck, M, is so mounted as to be capable of freely revolving upon the rod I. The circumference of this mold-chnck is configured in the form which it is desired shall characterize the correspondingportion of the vessel when completed. The attachment of the rod I to the arm I-I may preferably be made, if desired, so that the former may be secured at a greater or less distance from the axis ofrotation of the blank E.

hen, now, it is desired to construct a 'vessel with the upper portion of its body corre sponding to the configuration of the moldchuck M, the parts of the lathe and appurtenances just described are assembled and ar- This having been done, the lathe is set in motion by the application of power to the spindle A, as described, and the head-stock or chnckD, plate F, (whichby pressure firmly holds the blank E against the headstock 1),) and blank E are rosides of the blank E are contracted and forced 'fromthe lathe or afterward, as found most I the bottom of vessel made.

- different diameter may be easily effected.

but I reserve the right to hereafter claim it the mold-chuck M, and the plate F may be head-stock D, leaving the lathe in readiness ters, a different size of headstock and moldwith my improved form of head-stock I betated upon the axis represented by the dotted l lines y y, the indentation g in the plate F revolving around the extremity g. This motion 'causes the side 6 of the blank E to con; tinuously revolve in near proximity to the mold-chuck M. Aroller, p, is mountedin bearings upon the forked frame 19, which is held firmly to the lathe-rest by the clamp It. The lathe-rest has the usual longitudinal and transverse motions by means of the hand-wheels S and S. The operator holds both wheels in his hands, and, commencingat the point 70, the roller 1) is firmly pressed against the revolving sides 6 of the blank E. By agradual lat eral movement of the roller 1) the revolving against the periphery of the moldchuck M. The outlineof the contracted'portion of the spend with the configuration forming the outsume the shape shown in the dotted lines. It is preferable to form a bead upouthe edge surrounding the mouth ofthe vessel, which may be done, in the usual and well-known manner, either before removing the vessel desirable. The spinning of the vessel having now been completed, by releasing the bar J the rod I, with its arm II and projection 71/,

withdrawn from the interior of the vessel, when the latter may be removed from the for a repetition of the operation upon the re assemblage of the parts and the substitution of a new sheetmetal blank.

In utilizing my improved machinery for spinning vessels of different forms and diameters I employ headstocks of different diamechuck being used for each different size of My improvements are applicable to many different forms of vessels, the substitution of one form of mold-chuck for another being easily effected upon the separation of the bar J from rod I, and if such substitution necessitates the change of the diameter of the headstock, the substitution of a head-stock of a I am aware that it is not new to spin sheetmetal vessels by revolving the blanks from which' they are formed around an eccentrically-supported mold-chuck; but the combi-' nation of a rotary mold-chuck so supported lieve to be new, as well as the other specific combination of parts, as hereinafter claimed.

I do not claim herein means for adjusting the eccentricity of the axis of the mold-chuck with reference to the axis of the head-stock;

in another application for Letters Patent, if I so desire. V I

I claim as my invention- 1. In a machine for spinning sheet-metal vessels, the combination, substantially as hereinbefor e set forth, with a head-stock or chuck mounted directly upon the spindle of the machine, and having a fiat surface for supporting the base of the vessel, and a rim or guard laterally projecting from its periphery, of means for holding the vessel within or against said head-stock, and a rotating mold-chuck mounted eceentrically with respect to the axis of the head-stock.

2. In a machine for spinning sheet-metal vessels, the combination, substantially as hereinbefore set forth, with a head-stock or chuck mounted directly upon the spindle of the ma chine, and having a fiat surface for supporting the base of the vessel, and a rim or guard laterally projecting from its periphery, of means for holding the vessel within or against said head-stock, a rotating mold-chuck mounted eceentrically with respect to the axis of the head-stock, and a roller mounted in proximity to said mold-chuck and blank, whereby the contour of the blank is forced to conform to that of said mold-chuck;

3. In a lathe or machine for spinning sheetmetal vessels, the combination, substantially as hereinbefore set forth, with the head-stock or chuck mounted directly upon the spindle of the machine, and having a fiat surface for supporting the base of the vessel, and a rim or guard laterally projecting from its periphery, of the rotating mold-chuck, mounted eccentrically'with respect to the axis of the head-stock, the rod or axis upon which said mold-chuck rotates, the arm angularly attached to said rod or axis, the projection of said arm, the plate F, and a bearing upon which said plate rotates, formed upon the extremity of said projection, said bearing being concentric with the axis of said headstock.

4. In a lathe or machine for spinning sheet metal vessels, the combination, substantially as hereinbefore set forth, with a headstock or chuck mounted directly upon thespindle of bearing upon which said plate revolves.

In testimony whereof I have hereunto subscribed my naine this 8th day of February, A. D. 1883.

JULES CHAUMONT.

Vi tnesses:

JAMEs COCHRAN, LEWIS L. FOSDIUK. 

